Add net::SourceStream and net::FilterSourceStream

net/filter/source_stream.cc

Index: net/filter/source_stream.cc
diff --git a/net/cert/internal/completion_status.h b/net/filter/source_stream.cc
similarity index 50%
copy from net/cert/internal/completion_status.h
copy to net/filter/source_stream.cc
index 69126cd601071c0f6c95fbe78562f5d5a0badc7b..6f9d2c4e9fc935063cc7c147289f6db649f755e4 100644
--- a/net/cert/internal/completion_status.h
+++ b/net/filter/source_stream.cc
@@ -2,16 +2,16 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef NET_CERT_INTERNAL_COMPLETION_STATUS_H_
-#define NET_CERT_INTERNAL_COMPLETION_STATUS_H_
+#include "net/filter/source_stream.h"
 
 namespace net {
 
-enum class CompletionStatus {
-  SYNC,
-  ASYNC,
-};
+SourceStream::SourceStream(SourceType type) : type_(type) {}
 
-}  // namespace net
+SourceStream::~SourceStream() {}
+
+std::string SourceStream::OrderedTypeStringList() const {
+  return "";
+}
 
-#endif  // NET_CERT_INTERNAL_COMPLETION_STATUS_H_
+}  // namespace net